Make TextIndentLine an enum class.

third_party/WebKit/Source/core/style/ComputedStyleConstants.h

 /*
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  *           (C) 2000 Antti Koivisto (koivisto@kde.org)
  *           (C) 2000 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2003, 2005, 2006, 2007, 2008, 2009, 2010 Apple Inc. All rights
  * reserved.
  * Copyright (C) 2006 Graham Dennis (graham.dennis@gmail.com)
  * Copyright (C) 2009 Torch Mobile Inc. All rights reserved.
  * (http://www.torchmobile.com/)
  *
@@ skipping 391 matching lines @@
   kContentDistributionSpaceBetween,
   kContentDistributionSpaceAround,
   kContentDistributionSpaceEvenly,
   kContentDistributionStretch
 };
 
 // Reasonable maximum to prevent insane font sizes from causing crashes on some
 // platforms (such as Windows).
 static const float kMaximumAllowedFontSize = 10000.0f;
 
-enum TextIndentLine { kFirstLine, kEachLine };
+enum class TextIndentLine { kFirstLine, kEachLine };
 enum class TextIndentType { kNormal, kHanging };
 
 enum CSSBoxType {
   kBoxMissing = 0,
   kMarginBox,
   kBorderBox,
   kPaddingBox,
   kContentBox
 };
 
@@ skipping 11 matching lines @@
 // fraction, which leaves 20 bits for the integer part, making 1048575
 // the largest number.
 
 static const int kBorderWidthFractionalBits = 6;
 static const int kBorderWidthDenominator = 1 << kBorderWidthFractionalBits;
 static const int kMaxForBorderWidth = ((1 << 26) - 1) / kBorderWidthDenominator;
 
 }  // namespace blink
 
 #endif  // ComputedStyleConstants_h